| Category | |
| Manufacturer Name | |
| Applications | |
| Approval Agency | |
| Current | |
| Efficiency | |
| Features | |
| Frequency | |
| Height | |
| Length | |
| Mounting Type | |
| No Load Power Consumption | |
| Number of Outputs | |
| Operating Temperature | |
| Output Current | |
| Output Voltage | |
| Power (Watts) | |
| Standard Number | |
| Type | |
| Voltage | |
| Width |
The VOF-225-48 is an AC-DC converter from CUI Inc. that provides a regulated 48V DC output. It is rated at 135W with convection cooling or 255W with forced air cooling (34.2 CFM). The converter accepts a universal AC input of 90-277Vac at 47-63Hz and features active power factor correction (0.98 typical at 115Vac).
Efficiency reaches up to 91%, minimizing power loss. Output ripple and noise are limited to 480 mVp-p. The converter includes a built-in trim pot for output voltage adjustment of ±5%. Dynamic performance includes a transient response of 4,800 mVp-p under 1kHz 90%-10% load swings, a start-up delay of up to 3 seconds, and a hold-up time of at least 10ms.
This open-frame converter is suitable for industrial, telecom, and LED lighting applications where a compact, efficient 48V power source is required. An internal 6.3A/250V time-delay fuse provides input protection.
The input voltage range is 90-277 Vac.
Maximum output power is 135 W with convection cooling and 255 W with forced air cooling (34.2 CFM).
Maximum efficiency is 91%.
Minimum hold-up time is 10 ms at 115/230 Vac.
Yes, the output voltage is adjustable ±5% via a built-in trim pot.